Drugs Home > Previfem

Previfem is a generic oral contraceptive that is available by prescription only. By stopping ovulation and altering the endometrium and cervical mucus, the pill helps to prevent pregnancy. Each pack of Previfem contains 28 tablets. You must take one tablet daily, at the same time each day. While most people tolerate this form of birth control well, potential side effects include headaches, vomiting, and spotting.

What Is Previfem?

Previfem® (norgestimate/ethinyl estradiol) is a prescription birth control pill (technically known as an oral contraceptive). It is a generic version of Ortho-Cyclen®.
(Click What Is Previfem Used For? for more information on Previfem uses, including possible off-label uses.)

Previfem Side Effects

As with any medicine, side effects are possible with Previfem. However, not everyone who uses the contraceptive will experience side effects. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can easily be treated by you or your healthcare provider. Serious side effects are less common.
Common side effects of Previfem include, but are not limited to:
  • Breast tenderness or swelling
  • Breakthrough bleeding (bleeding or spotting between periods)
  • Nausea or vomiting
  • Headaches.
(Click Previfem Side Effects to learn more, including potentially serious side effects that you should report immediately to your healthcare provider.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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